DTH drilling is a percussion system driving a piston inside hammer body with up and down motion by compressed air and transmitting an intensive percussion energy to the bit to enable the drilling by crushing the rock. Drilling method by DTH hammer exerts high drilling performance especially for drilling hard rock and contributes for shortening work schedule. Hence, this method is widely utilized for foundation work, landslide prevention work, quarrying services, marine civil work, etc.
Sansung company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries. Sansung DTH hammers transmit intensive impact energy with low energy loss. This results in good rock breakage, high penetration rates and high productivity. The equipment is designed to give optimal hole quality, reliability, and long service life, as well as the best blasting results and low total operation cost.Hammer inch | Bits diameter | Shank | |
Metric | Inch | ||
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" |
COP32/COP34/MACH303
M30/DHD3.5/BR3 |
4" | 105mm-152mm | 4 1/8"-6" |
COP44/DHD340/MACH44
SD4/M40/QL40 |
5" | 133mm-165mm | 5 1/4"-6 1/2" |
COP54/DHD350R/MACH50
SD5/M50/QL50/BR5 |
6" | 152mm-254mm | 4 1/8"-10" |
COP64/DHD360/SD6
M60/QL60/Bulroc BR6 |
8" | 203mm-330mm | 8"-13" |
COP84/DHD380/SD8
QL80/M80 |
10" | 254mm-380mm | 10"-15" |
SD10
NUMA100 |
12" | 305mm-508mm | 12"-20" |
DHD1120/SD12
NUMA120/NUMA125 |
To know 12-30 inch bits information, contact us now |
Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
1-3" Middle-low pressure
DTH hammers |
BR1
BR2 BR3 |
RD40 box
RD50 box API 2 3/8" Reg |
Φ64-Φ76mm
Φ70-Φ90mm Φ90-Φ110mm |
0.7-1.75Mpa | 0.7 Mpa | 4.5 m3/min |
1.0 Mpa | 4 m3/min | |||||
1.4 Mpa | 5 m3/min | |||||
3" hammers |
DHD3.5
COP32/COP34 M30 |
API 2 3/8"Reg | Φ90-Φ110mm | 1.0-1.5Mpa | 1.0 Mpa | 4.5 m3/min |
1.5 Mpa | 9 m3/min | |||||
4" hammers |
DHD340
COP44 QL40 SD4 M40 |
API 2 3/8"Reg | Φ105-Φ130mm | 1.0-2.5Mpa | 1.0 Mpa | 6 m3/min |
1.8 Mpa | 10 m3/min | |||||
2.4 Mpa | 15 m3/min | |||||
5" hammers |
DHD350
COP54 QL50 SD5 M50 |
API 2 3/8"Reg
API 3 1/2"Reg |
Φ130-Φ156mm | 1.0-2.5Mpa | 1.0 Mpa | 9 m3/min |
1.8 Mpa | 15 m3/min | |||||
2.4 Mpa | 23 m3/min | |||||
6" hammers |
DHD360
COP64 QL60 SD6 M60 |
API 3 1/2"Reg | Φ152-Φ203mm | 1.0-2.5Mpa | 1.0 Mpa | 10 m3/min |
1.8 Mpa | 20 m3/min | |||||
2.4 Mpa | 28.5 m3/min | |||||
8" hammers |
DHD380
COP84 QL80 SD8 M80 |
API 4 1/2"Reg | Φ200-Φ279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
1.8Mpa | 26m3/min | |||||
2.4Mpa | 34m3/min | |||||
10" hammers |
SD10
NUMA100 |
API 6 5/8"Reg | Φ254-Φ330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
1.8Mpa | 40m3/min | |||||
2.4Mpa | 55m3/min | |||||
12" hammers |
DHD1120
SD12 NUMA120 NUMA125 |
API 6 5/8"Reg | Φ305-Φ381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
1.8Mpa | 56m3/min | |||||
2.4Mpa | 78m3/min |